Chain sling Grade 80 TOSL

3-pointsteel alloy

Overview
Grade 80 TOSL Chain Sling is a triple-leg lifting assembly manufactured from quenched and tempered Grade 80 alloy steel chain and components. The sling features a quad oblong master link assembly on the top and Grade 80 self-locking hooks on the bottom. The three-leg configuration improves load stability versus single- and double-leg slings and is suitable for lifting machinery, structural steel, precast concrete, fabricated components and other irregular loads. Self-locking hooks engage automatically under load to reduce risk of accidental disengagement during lifts.

Product Configuration Code

• T = Triple Leg
• O = Quad Oblong Master Link Assembly
• SL = Self Locking Hook

Product Identification
Each sling is permanently marked and supplied with traceable documentation:

• Individual serial number
• Chain size
• Chain grade
• Exact sling length
• Working Load Limit (WLL)

Typical Applications

• Heavy machinery handling
• Structural steel lifting
• Precast concrete installation
• Equipment installation
• Mining maintenance
• Industrial material handling

Parameter — Metric table (all values in metric tons)
Chain diameter (mm) | 1 Leg (ton) | 2 Legs (a between 0° and 45°) (ton) | 2 Legs (a between 45° and 60°) (ton) | 3 & 4 Legs (a between 0° and 45°) (ton) | 3 & 4 Legs (a between 45° and 60°) (ton) | Continuous sling (ton)
Factor rows: Factor 1.0 (a between 0° and 45°), Factor 1.4 (a between 45° and 60°) for 2-legs; Factor 1.0 and Factor 2.1 for 3&4 legs; Continuous sling Factor 1.6 shown.
4 | 0.5 | 0.71 | 0.5 | 1.06 | 0.75 | 0.8
5 | 0.8 | 1.12 | 0.8 | 1.6 | 1.18 | 1.24
6 | 1.12 | 1.6 | 1.12 | 2.36 | 1.7 | 1.8
7 | 1.5 | 2.12 | 1.5 | 3.15 | 2.24 | 2.5
8 | 2 | 2.8 | 2 | 4.25 | 3 | 3.15
10 | 3.15 | 4.25 | 3.15 | 6.7 | 4.75 | 5
13 | 5.3 | 7.5 | 5.3 | 11.2 | 8 | 8.5
16 | 8 | 11.2 | 8 | 17 | 11.8 | 12.5
18 | 10 | 14 | 10 | 21 | 15 | 16
19 | 11.2 | 16 | 11.2 | 23.5 | 16.8 | 17.9
20 | 12.5 | 17 | 12.5 | 26.2 | 18.7 | 20
22 | 15 | 21.2 | 15 | 31.5 | 22.5 | 24
26 | 21.2 | 30 | 21.2 | 44.5 | 31.8 | 33.9
28 | 25 | 33.5 | 25 | 52.5 | 37.5 | 40
30 | 28 | 39.2 | 28 | 58.8 | 42 | 44.8
32 | 31.5 | 45 | 31.5 | 66.1 | 47.2 | 50.4
36 | 40 | 56 | 40 | 84 | 60 | 64
38 | 45 | 63 | 45 | 94.5 | 67.5 | 72
40 | 50 | 70 | 50 | 105 | 75 | 80

Parameter — Feet table (WLL values in lbs)
Design Factor 4:1 — values represent maximum WLL in pounds by chain diameter and sling configuration. Columns: Chain diameter (inches) | 1-Leg sling (lbs) | 2-Leg sling 60° (lbs) | 2-Leg sling 45° (lbs) | 2-Leg sling 30° (lbs) | 3&4-Leg sling 60° (lbs) | 3&4-Leg sling 45° (lbs) | 3&4-Leg sling 30° (lbs)
7/32" | 2,100 | 3,600 | 3,000 | 2,100 | 5,500 | 4,400 | 3,200
9/32" | 3,500 | 6,100 | 4,900 | 3,500 | 9,100 | 7,400 | 5,200
5/16" | 4,500 | 7,800 | 6,400 | 4,500 | 11,700 | 9,500 | 6,800
3/8" | 7,100 | 12,300 | 10,000 | 7,100 | 18,400 | 15,100 | 10,600
1/2" | 12,000 | 20,800 | 17,000 | 12,000 | 31,200 | 25,500 | 18,000
5/8" | 18,100 | 31,300 | 25,600 | 18,100 | 47,000 | 38,400 | 27,100
3/4" | 28,300 | 49,000 | 40,000 | 28,300 | 73,500 | 60,000 | 42,400
7/8" | 34,200 | 59,200 | 48,400 | 34,200 | 88,900 | 72,500 | 51,300
1" | 47,700 | 82,600 | 67,400 | 47,700 | 123,900 | 101,200 | 71,500
1-1/4" | 72,300 | 125,200 | 102,200 | 72,300 | 187,800 | 153,400 | 108,500

Notes
The angle a is measured from the vertical (a between 0° and 45° and a between 45° and 60° are used). Load factors vary by sling configuration and angle and are applied to calculate WLL. All metric table values are in metric tons; feet table values are in pounds. Smaller lifting angles (measured from the horizontal) increase tension in each sling leg and reduce overall lifting capacity.

Standards and Packaging
Name: Grade 80 TOSL Chain Sling – Triple Leg w/ Quad Oblong Master Link on Top and Self Locking Hooks on Bottom
MOQ: 100 Sets
Package: Carton + Steel Pallet

Characteristics / Technical specifications

• Model / Series: TOSL
• Chain grade: Grade 80 alloy steel (quenched and tempered)
• Configuration: Triple-leg chain sling
• Top fitting: Quad oblong master link assembly
• Bottom fittings: Grade 80 self-locking hooks
• Identification: Individual serial number, chain size, chain grade, exact sling length, WLL
• Supply: Supplied with written certification; components matched to Grade 80 compatibility
• Typical applications: Heavy machinery, structural steel, precast concrete, equipment installation, mining maintenance, industrial material handling
• MOQ: 100 sets
• Package: Carton plus steel pallet